This is a tricky question. The most likely answer would be either B - settler colonies or C - import economies. The reason for this is that the majority of colonies that were established by the Spanish and the British were being used to rob the indigenous people who were living there. All the gained riches were then being sent back to Europe. The most prominent example of this is the Spanish conquering of the Aztec empire. However, not every colony was like that - there also existed settler colonies with no economic gain. In general though, I would say the answer is C - import economies.
Spanish and British possessions in the "New World" could BEST be described as A) royal colonies B) settler colonies C) import economies D) proprietary colonies